Deprecation: #95200 - RequireJS callbacks as inline JavaScript¶
See forge#95200
Description¶
Custom FormEngine
components allowed to load RequireJS modules
with arbitrary inline JavaScript to initialize those modules. In favor
of introducing content security policy headers, the amount of inline
JavaScript shall be reduced and replaced by corresponding declarations.
Using callback functions has been marked as deprecated and shall be replaced by new
TYPO3\CMS\Core\Page\JavaScriptModuleInstruction
declarations. In
FormEngine
, loading RequireJS module via arrays has been marked as deprecated and
has to be migrated as well.
Impact¶
Using $resultArray['requireJsModules']
with scalar string
values will
trigger a PHP E_USER_DEPRECATED
error.
Affected Installations¶
Installations implementing custom FormEngine
components and loading
RequireJS modules via $resultArray['requireJsModules']
are affected.
Migration¶
New JavaScriptModuleInstruction
allows to declare the following
aspects when loading RequireJS modules:
$instruction = JavaScriptModuleInstruction::forRequireJS('TYPO3/CMS/Module')
creates corresponding loading instruction that can be enriched with following declarations$instruction->assign(['key' => 'value'])
allows to assign key-value pairs directly to the loaded RequireJS module object or instance$instruction->invoke('method', 'value-a', 'value-b')
allows to invoke a particular method of the loaded RequireJS instance with given argument values$instruction->instance('value-a', 'value-b')
allows to invoke the constructor of the loaded RequireJS class with given argument values
Initializations other than the provided aspects have to be implemented in custom module implementations, for example triggered by corresponding on-ready handlers.
Example in FormEngine
component¶
$resultArray['requireJsModules'][] = ['TYPO3/CMS/Backend/FormEngine/Element/InputDateTimeElement' => '
function(InputDateTimeElement) {
new InputDateTimeElement(' . GeneralUtility::quoteJSvalue($fieldId) . ');
}'
];
... has to be migrated to the following ...
// use use TYPO3\CMS\Core\Page\JavaScriptModuleInstruction;
$resultArray['requireJsModules'][] = JavaScriptModuleInstruction::forRequireJS(
'TYPO3/CMS/Backend/FormEngine/Element/InputDateTimeElement'
)->instance($fieldId);
JavaScriptModuleInstruction
forwards arguments as JSON
data - and thus
handles proper context-aware encoding implicitly (GeneralUtility::quoteJSvalue
and similar custom encoding can be omitted in this case).